CN2681035Y

CN2681035Y - Vertical simple gas boiler

Info

Publication number: CN2681035Y
Application number: CN 200420011691
Authority: CN
Inventors: 刘宏伟; 魏伏辰; 张静荣; 张占岭
Original assignee: XINXING BOILER FACTORY JILIN CITY
Current assignee: XINXING BOILER FACTORY JILIN CITY
Priority date: 2004-03-19
Filing date: 2004-03-19
Publication date: 2005-02-23
Anticipated expiration: 2014-03-19

Abstract

The utility model relates to an improvement of a boiler, particularly a vertical simple gas boiler which belongs to the combustion equipment of solid fuel. The vertical simple gas boiler comprises a boiler main body. The utility model is characterized in that a secondary air box and a tertiary air box are arranged around the outer wall of a boiler shell above a boiler door. A secondary air nozzle is arranged between a boiler shell of the secondary air box and a boiler liner, and a tertiary air nozzle is arranged between a boiler shell of the tertiary air box and the boiler liner. An arch pipe which is communicated with the boiler liner is arranged in a hearth between the secondary air nozzle and the tertiary air nozzle. A radiation arch is arranged on the arch pipe. The utility model has simple structure, easy manufacture, low cost, simple operation, safety and convenient adjustment. The frequent coal feeding is not required, and labor intensity is reduced. Dispersed coal can be directly burnt without processing, manual power is saved, and running cost is reduced. The heat transfer of the boiler is fast, and the heat efficiency of the boiler is high. Fume and dust confirm to the standard of the national environmental protection requirement.

Description

Vertical simple and easy gas boiler

Technical field

The utility model relates to the improvement of boiler, and particularly a kind of vertical simple and easy gas boiler belongs to and uses solid-fuelled combustion apparatus.

Background technology

Be widely used in the various minitype vertical type coal-burning boilers of medium-sized and small enterprises at present, all existing fuel in various degree can not completing combustion boiler over-emitting black exhaust, ignition temperature is inhomogeneous, heat loss is big, dust exhausting concentration exceeds standard deficiencies such as contaminated environment, has a strong impact on the application of this boiler.

Summary of the invention

The purpose of this utility model be at above-mentioned deficiency provide a kind of simple in structure, the vertical simple and easy gas boiler fast, that the thermal efficiency is high, flue dust is up to standard conducts heat.

The technical scheme that realizes the utility model purpose is:

This vertical simple and easy gas boiler, comprise the boiler body that exhanst gas outlet, steam outlet pipe, fire grate, fans entrance, shell, flue, horizontal water tube, smoke blocking board, fire door, leftover bits and pieces circle etc. constitute, be characterized in above fire door, being provided with secondary wind bellows, tertiary air bellows around the shell outer wall, between the shell of secondary wind bellows and flue, be provided with secondary wind tuyere, between the shell of tertiary air bellows and flue, be provided with the tertiary air tuyere, in the burner hearth between tertiary air tuyere and the secondary wind tuyere, be provided with the arch tube that is connected with flue, the radiation arch is housed on arch tube.

Secondary wind tuyere can divide upper and lower two-layer layout 8～18 tuyeres, and tuyere air-out angle is 20～23 degree; The tertiary air tuyere can divide upper and lower two-layer layout 8～20 tuyeres, and tuyere air-out angle is 20～25 degree.

The radiation arch is made of side by side several arch blocks.

On steam outlet pipe, also can be provided with steam-water separator.

The utility model is that traditional gas burner and cyclone combustion chamber are organically combined, and---burning---dedusting is finished in a burner hearth to make the gasification of fuel.Between different coal, adopt different wind speed, make coal be converted into coal gas on the grate and under the situation of high temperature anoxic, and in the air chamber internal combustion of burner hearth; The setting of secondary wind, tertiary air makes fully burning of fuel gas rotation, and flying dust separates with flue gas and is deposited in the burner hearth, has reached stove internal combustion and dedusting.Control the 45-55% that wind accounts for total blast volume simultaneously, secondary wind accounts for the 25-30% of total blast volume, and tertiary air accounts for the 20-25% of total blast volume, makes coal gas be in the oxygen-enriched combusting state in the overall process of burning, and pollutant such as nitrogen oxide is greatly reduced.Radiation arch in the setting of burner hearth smoke outlet has strengthened the radiation heat transfer in the stove, and combustion gas is sharply turned at the outlet of still place, has prolonged the time of staying of flue gas in stove, and the separating effect of combustion gas and flying dust and smoke combustion are further strengthened.

The utility model is simple in structure, processing and fabricating is easy, cost is low; Simple to operate, safe, easy to adjust, need not frequently to throw coal and reduced labour intensity; Can directly use diffusing coal, need not process processing, save manually, reduce operating cost; Boiler heat-transfer is fast, the thermal efficiency is high, flue dust reaches national environmental protection requirement standard.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model.

Fig. 2 is the position view of secondary wind tuyere among Fig. 1.

Fig. 3 is the position view of tertiary air tuyere among Fig. 1.

Fig. 4 is the plan structure schematic diagram of radiation arch among Fig. 1.

Fig. 5 is the structure for amplifying schematic diagram of steam-water separator among Fig. 1.

Among the figure: 1 safety valve, 2 exhanst gas outlets, 3 steam outlet pipes, 4 steam-water separators, 5 shells, 6 flues, 7 horizontal water tubes, 8 smoke barriers, 9 fire grates, 10 observation panels, 11 tertiary air bellows, 12 tertiary air tuyeres, 13 fire doors, 14 ash doors, 15 secondary wind bellows, 16 secondary wind tuyeres, 17 leftover bits and pieces circles, 18 ash circles, 19 ajutages, 20 fans entrances, 21 arch tubes, 22 radiation arch, 23 arch blocks, 24 radiating apertures, 25 transverse tubes, 26 vapor openings, 27 overflow pipes.

The specific embodiment

The utility model is further described with the embodiment that provides below in conjunction with accompanying drawing.

With reference to Fig. 1, this vertical simple and easy gas boiler, comprise the boiler body that exhanst gas outlet 2, steam outlet pipe 3, fire grate 9, fans entrance 20, shell 5, flue 6, horizontal water tube 7, smoke blocking board 8, fire door 13, the circle 17 of getting a foothold etc. constitute, above fire door, secondary wind bellows 15, tertiary air bellows 11 have been horizontally disposed with around the shell outer wall, be provided with secondary wind tuyere 16 between shell in secondary wind bellows and flue, be provided with tertiary air tuyere 12 between shell in the tertiary air bellows and flue; Be provided with the arch tube 21 that is connected with flue in the burner hearth between tertiary air tuyere and the secondary wind tuyere, radiation arch 22 is housed on arch tube, the radiation arch is combined side by side by 3～4 arch blocks 23.Secondary wind tuyere divides upper and lower two-layer layout 8～18 tuyeres, and tuyere air-out angle is 20～23 degree; The tertiary air tuyere divides upper and lower two-layer layout 8～20 tuyeres, and tuyere air-out angle is 20～25 degree.On steam outlet pipe, be provided with steam-water separator 4.

Secondary wind tuyere is arranged and is seen Fig. 2 in the present embodiment, and secondary wind airduct divides upper and lower two-layer, 10 every layer, tuyere air-out angle is 25 degree, tuyere label 16-2-1-1 represents the 1st secondary wind tuyere of lower floor, and 16-2-2-1 represents the 1st the secondary wind tuyere in upper strata, and other is analogized; Tertiary air tuyere layout is seen Fig. 3, and the tertiary air tuyere divides upper and lower two-layer, and 10 every layer, tuyere air-out angle is 25 degree, and tuyere label 12-3-1-1 represents the 1st tertiary air tuyere of lower floor, and 12-3-2-1 represents the 1st the tertiary air tuyere in upper strata, and other is analogized.The structure of radiation arch is with reference to Fig. 4, and the arch block that the radiation arch is made by 4 blocks of refractory concretes in the present embodiment is formed side by side, has radiating aperture 24 on arch block.The structure of steam-water separator is connected with the transverse tube 25 of closed at both ends with reference to Fig. 5 in the steam outlet pipe lower end, have vapor opening 26 on transverse tube top, is communicated with overflow pipe 27 in the transverse tube bottom.Being provided with of steam-water separator improved the quality of exporting steam from steam outlet pipe, and the water that does not have vaporization is in overflow pipe returns flue.

The utility model designer implements the vertical simple and easy gas boiler of 816 millimeters of diameters, high 2990 millimeters, 245 millimeters of chimney diameters, 700 kilograms of boiler water capacities.Technical performance is: rated capacity 0.25t/h, rated operating pressure 0.4Mpa, 151 ℃ of nominal steam temperatures, boiler heating surface 8.05m ², boiler grate area 0.33m ², 170 ℃ of exhaust gas temperatures.The inner boiler thermal output that detects reaches 72% through relevant department, under nominal output, use II class bituminous coal, be provided with under the situation being unworthy of any dedusting, smoke dust discharge concentration is 77 milligrams/cubic metre, discharged nitrous oxides concentration is 39 milligrams/cubic metre, lingemann blackness is the I level, meets national I class area operation discharge standard.

Claims

1, a kind of vertical simple and easy gas boiler, comprise the boiler body that exhanst gas outlet, steam outlet pipe, fire grate, fans entrance, shell, flue, horizontal water tube, smoke blocking board, fire door, leftover bits and pieces circle etc. constitute, it is characterized in that above fire door, being provided with secondary wind bellows, tertiary air bellows around the shell outer wall, between the shell of secondary wind bellows and flue, be provided with secondary wind tuyere, between the shell of tertiary air bellows and flue, be provided with the tertiary air tuyere, in the burner hearth between tertiary air tuyere and the secondary wind tuyere, be provided with the arch tube that is connected with flue, the radiation arch is housed on arch tube.

2, according to the vertical simple and easy gas boiler of claim 1, it is characterized in that secondary wind tuyere can divide upper and lower two-layer layout 8～18 tuyeres, tuyere air-out angle is 20～23 degree; The tertiary air tuyere can divide upper and lower two-layer layout 8～20 tuyeres, and tuyere air-out angle is 20～25 degree.

3,, it is characterized in that radiation arch is made of side by side several arch blocks according to the vertical simple and easy gas boiler of claim 1.

4,, it is characterized in that on steam outlet pipe, also can being provided with steam-water separator according to the vertical simple and easy gas boiler of claim 1.